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International Journal of Chemical Engineering
Volume 2016, Article ID 5217802, 9 pages
Research Article

Optimal Extraction of Gallic Acid from Suaeda glauca Bge. Leaves and Enhanced Efficiency by Ionic Liquids

Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, School of Chemistry and Chemical Engineering, Yancheng Teachers University, Xiwang Road, Yancheng, Jiangsu 224051, China

Received 23 November 2015; Revised 4 January 2016; Accepted 11 January 2016

Academic Editor: Alírio Rodrigues

Copyright © 2016 Xin-Hong Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Supplementary Material

Extraction of gallic acid from Suaeda glauca Bge leaves were performed based on the single factor experiments by ultrasonic-assisted extraction (UAE). The influence parameters including extraction temperature, extraction time and liquid-solid ratio were optimized by response surface methodology (RSM). Figure S1 showed high performance liquid chromatography profile of 17 runs designed by Box-Behnken Design (BBD). Then regression model was built on the actual data of response variables using Design-Expert v7.1.6 software and optimal conditions were obtained. Next, a validation test should be performed to verify the repeatability of the regression model obtained from the systematic study of different extraction parameters. Figure S2 was HPLC diagrams of verification experiments. Under optimal conditions, to observe the EE of gallic acid using ionic liquids, Figure S3 HPLC diagrams of enhanced experimentals by ionic liquids were collected.

  1. Supplementary Material